The groove in a shaft that accepts a key is called

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Multiple Choice

The groove in a shaft that accepts a key is called

Explanation:
Keyseat is the term that describes the groove cut into the shaft to accept the key. When a key is used to lock a shaft to a mounted part, the key sits in two matching slots: the keyseat on the shaft and the keyway in the hub or pulley. The keyseat on the shaft holds the key in place so the shaft and the attached part rotate together. The corresponding groove in the hub is called a keyway, not on the shaft, which is why this option is not the best description for the groove on the shaft. A dowel is a separate pin used for alignment, not the slot for transmitting torque via a key.

Keyseat is the term that describes the groove cut into the shaft to accept the key. When a key is used to lock a shaft to a mounted part, the key sits in two matching slots: the keyseat on the shaft and the keyway in the hub or pulley. The keyseat on the shaft holds the key in place so the shaft and the attached part rotate together. The corresponding groove in the hub is called a keyway, not on the shaft, which is why this option is not the best description for the groove on the shaft. A dowel is a separate pin used for alignment, not the slot for transmitting torque via a key.

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